Force-pump



(No Model.)

B. G. VANDUZEN.

FORGE PUMP.

Patented Jan. 31, 1888.

N PETERS. :mmm

PATENT ericajt BENJAMIN C. VANDUZEN, OF WINTON PLACE, OHIO.

YFORCE-PUMP.

SPECIFICATION forming part of Letters Patent No. 377,054, dated January31,1888.

Serial No. 136,479. (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN C. VNDUZEN, a resident of Vinton Ilaee, inthe county of Hamilton and State of Ohio, have invented certain new anduseful Improvements in Force- Pumps, of which the following is aspecification.

My improvements are applicable not only to various descriptionsofsingle-acting pumps, but also to various kinds of double -actingpumps.

The several features of my invention and the various advantagesresulting from their use, conjointly or otherwise, will be apparent fromthe following description and claims.

For convenience of illustration I will now proceed to describe myinvention as applied to one description of double acting forcepumps.

In the accompanying drawings, Figure 1 represents a side elevation ofsaid pump. Fig. 2 represents a vertical central section taken throughthe discharge-pipe and the stay-rod. Fig. 3 represents a verticalcentral section of the drop-valve, taken at right angles to the verticalplane of the section shown in Fig. 2. Fig. et represents a plan view ofthe dropvalve, but showing the surrounding spring in dotted lines. Fig.5 is a vertical central section of a modification.

A indicates a standard of any preferred construction, in the presentillustration set upon a platform or suitable support, B.

C indicates the discharge pipe, suitably supported. The discharge-pipein the present illustration is screwed or otherwise connected to themain cylinder D, or to a branch, as D', of said cylinder D, as shown. Inthe present illustration the main cylinder D is supported at one side bythe discharge-pipe C and at the other side by a stay-rod, E.

In the upper part of the main cylinder D is located the forcing-cylinderF. lThis cylinder F is connected to the main cylinder D in any suitablemanner which allows of the cylinder F being lifted up and withdrawn fromthe main cylinder D. In the present illustration the upper and open endof cylinder D has a flare, D', extending upward and outwardly, and inthis flare rests an annular flange or collar, F', of cylinder F,arranged to allow suitable packing to be placed between the collar F andthe inner surface of the flare D'. In the present instance an elasticring packing, D2, is shown. The cylinder is kept down in place bysuitable means-as, for example, by a pipe, G, extending up and into abase or equivalent part, H, and is then held down to place by means of ahollow nut, H', screwed into the base. Through this n'ut plays theactuating-rod I. Preferably the lower end of the pipe G rests within anannular flange or recess, F', of forcing-cylinder F.

rlhe lower end of the forcingcylinder F is steadied by suitable means-asfor example, by projections F2, placed at suitable intervals upon theperiphery of said cylinder F.

Located in main cylinder D is the main or suction piston J, constructedin suoli a manner that it can be readily withdrawn from said cylinder orreinserted therein without displacement of its packing or injurythereto.

Located in the forcing-cylinder F is the forcing-piston K, constructedin such a manner that it can be readily withdrawn from said cylinder For reinserted therein without dis placement of its packing or injurythereto. The suction-piston J is connected to the forcing-piston K bymeans of a pipe or tube, L, which is screwed or otherwise secured to theupper part or disk, f, of the forcing-piston K, and passes down throughthe piston J, and has a uut, L', screwed onto its lower end, and uponthis nut rests the lower part of the piston J. The two pistons arerigidly kept apart by means of a tube, M, or'other means interveningbetween the said pistons.

The preferred form of construction of the lower piston is as shown-viz.,a lower disk, a, upper disk, b, separated by a packing, d, held tightlybetween them, and the outer edge of this packing d bends upward and liesbetween the upper disk and interior surface of main cylinder D. On upperdisk, l), lies a diseal valve, e, preferably flexible, and securedbetween the upper face of disk b of piston J and the lower end of tubeM.

rIhe preferred construction of the forcing` piston K is as follows: Ithas an upper disk, f, and a lower disk, g. The lower disk, g, is looseupon pipe or tube L. Between disk f and disk g is a packing, h, whoseouter edge is turned downward and is between the periphery of the lowerdisk, g, and the interior surface of the forcing-cylinder F. Theactuating-rod I, for a distance above the forcingpiston K, is preferablyhollow, for the purposes now to be described.

Through the tube L plays a rod, N, and the upper end ofthis rod extendsup into the tubular portion of the actuating-rod. The lower end of therod N extends down below the suction -piston J, and is connected to adropvalve7 P, of any suitable description, and constructed in any mannersuitable for enabling it to be inserted into tube D or Withdrawntherefrom. The upper end of the rod is provided with a projection orenlargement, k, arranged, when the actuating-rod and forcingpiston arebeing withdrawn, to strike against the upper end of pipe L or a suitablestop connected to the forcing-piston K or to the tubular portion of theactuating-rod I.

As the forcing-piston K and the suction-piston J together move up anddown during the operation of pumping, the rod N is stationary with thevalve l?, but when the suction-piston is raised up and withdrawn fromthe pump by lifting the actuating-rod Ithe knob or enlargement of rod Imeets the upper end of pipe L, or the stop already mentioned, and isalso drawn up and out of the pump-tubes and carries with it thedrop-valve P. The forcingcylinder is also elevated at the same time.Likewise the drop-valve Pand the rod N will accompany said pistonsandforcing-cylinder, and when the suctionpiston and the forcingcylinder areto be reinserted into the cylinder D the drop-valve is in position forinsertion, and is to be first inserted into said cylinder or tube D, andwill then be held suspended from the rod N. After the drop-valve isinserted into said cylinder D,the pistcnJ and the forcing-cylinder aresuccessively inserted into cylinder D, and when in working position thedrop-valve P will have descended and have reached its seat and beresting thereon in working position.

This improvement in the mode of suspending the drop-valve and ofcarrying it to its seat may be advantageously employed in single-actingor double-acting pumps. Thus, for example, in single-acting or liftingpumps the forcing-cylinder F and its piston K may be dispensed with. Insuch event the pipe M may be dispensed with, and the pipe L be, whendesired, one with the pipe I of the actuating-rod, or be connected attop to the said rod in any suitable manner. f

The head or enlargementk of the rodN will engage a suitable stop on theinner portion of said tube or pipe L, or equivalentpart of the pump.Thus the drop-valve can be withdrawn from the tube or cylinder D, orreinserted therein along with piston J, in a manner similar to thatWhere two pistons are-employed. In any event, whether the pump be singleor double acting, the rod N will of course be long enough to enable thepiston or pistons to operate in the pump at their proper lows: Thedrop-valve cbnsists of annular portion m. This portion m is suitablyconnected to the rod N, preferably, as shown, by an arch, w, the lowerrespective ends of this arch being connected to the annular portions mat respectively opposite sides of the latter, and the rod N beingconnected to the central upper portion of said arch by beingscrewedthereto orotherwise suitably secured. The periphery of this portion m isprovided atits upper edge with flange projections or lugs a, and at itslower edge with a flange or projections or lugs, n. Between the upperflange or projections, n, andthe lower flange or proj ections,n,islocated a spring, p, preferably annular, as shown, and

surrounding the annular portion m. The diameter of this annular springis, when left free and to itself, greater than the diameter'of the tubeor cylinder D,so that when the spring With the drop-valve is inserted inthe tube or cylinderD the springp is compressed, and its elasticpressure will (after the valve has been dropped onto its seat) hold saidvalve down in position on said-seat. The annular portion m may rest upona suitable valve-seat of any desired shape. as a sand or raised7 seat,the valve is provided with three legs, q, which rest on a suitableoffset-as, for example, 1^, suitably Vhen the seat is what is known yIOO4 connected to tube or cylinder D. These legs l iro the tube orcylinder D, a hpok, o, may be Y providedwhose shank is connected to theclapper, and whose hooked end rests upon the annular portion m or anequivalent projec- Vtion of the valve.

A novel and useful description of seat for the drop-valve consists of abushing, 1, preferably of brass or other non-corrosivev material,screwed into the bottom of the tube or cylinder D. This bushing ispreferably provided With a bottom flange, u, having its outer peripheryformed in straight sides. Such a flange affords a convenient meanswhereby a wrench may be applied to screw the bushing into or out fromthe tube or cylinder D; but the flange can be dispensed with and thebushing screwed into er out of said cylinder or tube by other means.This bushing extends offset and between the outer periphery of thebushing and the interior surface of the eylinder. Such a sandehan1ber isexceedingly useful in allowing any sand which eomes up through the valveto flow down into said chamber and away from and below the face of saidvalve. This bushin0r is also advantageous, in that it does away with allloose or packing joints and can be screwed metal to metal. Furthermore,it can be readily inserted to place or Withdrawn therefrom, inasmuch asit can be screwed into the cylinder or tube D from the outside.

Vhile the various features of my invention are preferably employedtogether, one or more of them may be employed Without the remainder. Oneor more of said features may be employed, so far as applicable, ineonnection with pumps or portions of pumps other than those hereinspecifically described.

Vhat I claim as new and of my invention, and desire to secure by LettersPatent, is-

l. In a lift-out and drop valve, the Combination of annular portion m,and annular spring p, and devices for holding said spring in position,substantially as set forth.

2. In a drop-valve, the combination of annular portion m, and flanges orprojections nu', l

and annular spring p, and the valve proper, substantially as set forth.

3. A drop-valve having annular portion m, and flanges or projections nn', and annular spring p, loeated between the said projections,substantially as set forth.

Ai. In a drop-valve, the combination of an nular portion m, and iiangesor proj eetions u n', and annular spring p, and valve proper, and legsg, connected to the annular portion, substantially as set forth.

5. In a drop-valve, the combination of annular portion m, and flanges orproj ectionsan, and annular spring p, and valve proper, and leg q,connected to the annular portion, and arch w, substantially as setforth.

6. The Combination of tube or cylinder D, bushing having raisedvalveseat I, forming an annular sand-chamber, and drop-valve havingannular portion m, and flanges or projections n n', and annular springp, and valve proper, and legs q, connected to the annular portion, allsubstantially as and for the purposes speeified.

BENJAMIN C. VANDUZEN.

Attest:

JNO. W. STREHLI, O. M. HILL.

